A public relations disaster could hurt the price of the stock, making John Hancock vulnerable to an unwanted takeover.

But it had been seen by the company as a reliable bulwark against an unwanted takeover.

Several are likely to be mergers aimed, in part, at building up enough critical mass to avoid unwanted takeovers.

As a result, European executives are more exposed to unwanted takeovers if their companies' shares sink.

The arrival of several large friendly investors should also offer the company further protection against an unwanted takeover.

Nonetheless, such parachutes can be formidable barriers to an unwanted takeover.

Wall Street lawyers maintained that the decision would have an exceptionally broad impact in helping corporations fight off unwanted takeovers.

Some see the deal as insurance on the part of Allegis against an unwanted takeover.

Moreover, managers themselves often use junk bonds to thwart an unwanted takeover.

The laws allow directors to just say no to unwanted hostile takeovers.